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On Wednesday 15 March 2006 12:48, Michael Sullivan |
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<michael@××××××××××××.com> wrote about '[gentoo-user] OT - I've built my |
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cross-compilation environment; now what?': |
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> I've succeeded in building a cross-compilation environment for an i586 |
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> on an i686 via crossdev, but I'm unsure how to use it. Can anyone help |
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> me? There are no docs for crossdev in /usr/share/doc, no man pages for |
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> it that I can find, and no info pages. I looked at the log files |
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Good luck finding solid cross-compilation documentation for /any/ |
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environment. That's black magic only practiced by high-geeks. ;) Even |
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they avoid it when possible because of the high toll on the practitioners |
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sanity. ;) |
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Most of us only use the cross-compilation toolchain for such geek-bishop |
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activities as distcc. |
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> crossdev created when I ran it and I see things like this: |
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> >>> emerge (1 of 1) cross-i586-gnu-linux/gcc-3.4.5-r1 to / |
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> |
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> But when I try to emerge things myself for the environment, emerge |
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> doesn't know what I'm talking about: |
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> |
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> camille ~ # emerge cross-i586-gnu-linux/mysql |
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> Calculating dependencies |
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> emerge: there are no ebuilds to satisfy "cross-i586-gnu-linux/mysql". |
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It's not quite that easy. You may need to change your make.conf, |
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make.profile, and /etc/portage to correct values for the TARGET |
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architecture (emerge will still use them and a -march=i686 will ruin the |
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packages you build, even if you use i586-pc-linux-gnu-gcc to build them), |
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then make sure and run emerge with the ROOT in your environment set to |
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where you want the alternate installation rooted. |
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Check out http://dev.gentoo.org/~vapier/CROSS-COMPILE-HOWTO . Specifically |
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the very bottom (Step 9) where he talks about installing stuff. |
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WARNING: I've heard some ebuilds don't respect ROOT and/or that ROOT is |
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ignored if you try and specify it in make.conf. |
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NB: The cross-* categories are only for the toolchain. Other packages |
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don't use their category for cross-compiling. |
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-- |
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"If there's one thing we've established over the years, |
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it's that the vast majority of our users don't have the slightest |
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clue what's best for them in terms of package stability." |
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-- Gentoo Developer Ciaran McCreesh |
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-- |
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gentoo-user@g.o mailing list |
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